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testsAndMisc/python_pkg/stockfish_analysis
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Krzysztof kuhy Rudnicki bb6713eabb fix(lint): convert os.path to pathlib - remove PTH per-file ignores 
- Converted os.path patterns to pathlib.Path in 15+ files
- os.path.join → Path /
- os.path.dirname → Path.parent
- os.path.exists → Path.exists()
- os.path.isfile → Path.is_file()
- os.path.abspath → Path.resolve()
- os.mkdir → Path.mkdir()
- os.listdir → Path.iterdir()
- os.getcwd → Path.cwd()
- os.replace → Path.replace()
- Updated function type hints to accept str | Path

Added PTH123 (open() vs Path.open()) to global ignores as stylistic preference
2025-11-30 23:03:03 +01:00
..
analyze_chess_game.py fix(lint): convert os.path to pathlib - remove PTH per-file ignores 2025-11-30 23:03:03 +01:00
README.md refactor: rename folders to fix N999, INP001, S311 linting rules 2025-11-30 21:20:17 +01:00
requirements.txt refactor: rename folders to fix N999, INP001, S311 linting rules 2025-11-30 21:20:17 +01:00
run.sh refactor: rename folders to fix N999, INP001, S311 linting rules 2025-11-30 21:20:17 +01:00

README.md

Chess move analysis with Stockfish

This utility parses a PGN (or a log that contains a PGN section) and evaluates each move with a local Stockfish engine, printing a per-move quality rating.

Install

Install python dependencies:

pip install -r PYTHON/stockfish_analysis/requirements.txt

Ensure Stockfish is installed and available in your PATH (or provide the path via --engine). On Linux, you can typically install with your package manager or download a binary.

Run

From the repo root:

python3 PYTHON/analyze_chess_game.py lichess_bot_game_8GSdY3Ci.log

Options:

  • --engine /path/to/stockfish to specify a custom engine path
  • --time 0.2 seconds per evaluation (default)
  • --depth 12 fixed depth instead of time

The script prints a table with, for each ply:

  • side to move, SAN move, eval before/after from mover's POV, delta, classification, and Stockfish best move suggestion.